21101010119 has 4 divisors (see below), whose sum is σ = 24115440144. Its totient is φ = 18086580096.

The previous prime is 21101010061. The next prime is 21101010137. The reversal of 21101010119 is 91101010112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21101010119 - 2²⁸ = 20832574663 is a prime.

It is a super-2 number, since 2×21101010119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21101010097 and 21101010106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101010169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1507215002 + ... + 1507215015.

It is an arithmetic number, because the mean of its divisors is an integer number (6028860036).

Almost surely, 2^21101010119 is an apocalyptic number.

21101010119 is a deficient number, since it is larger than the sum of its proper divisors (3014430025).

21101010119 is an equidigital number, since it uses as much as digits as its factorization.

21101010119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014430024.

The product of its (nonzero) digits is 18, while the sum is 17.

The spelling of 21101010119 in words is "twenty-one billion, one hundred one million, ten thousand, one hundred nineteen".